STMicroelectronics: 78xx Series Positive Linear Voltage Regulator TO-220 IC

STMicroelectronics 78xx Series Voltage Regulator IC – Fixed Positive Linear Regulator (TO-220)

The STMicroelectronics 78xx Series is a family of fixed positive linear voltage regulators designed to provide a stable and regulated DC output voltage. These regulators are built to deliver high reliability, low noise, and short-circuit protection, making them ideal for a wide range of power supply and electronic applications.

Available in various fixed output voltages such as 7805 (5V), 7812 (12V), and 7815 (15V), the 78xx series ensures consistent performance across load variations. Encased in the TO-220 package, these ICs offer excellent heat dissipation and durability for both consumer and industrial circuits.

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Key Features

• Fixed positive voltage output – available in multiple variants (e.g., 7805, 7808, 7812, 7815, 7824).

• Output current up to 1A / 1.5A (depending on model).

• Internal thermal overload and short-circuit protection.

• Stable and reliable output with low output noise.

• TO-220 package – excellent heat dissipation and easy mounting.

• Wide input voltage range (up to 35V depending on model).

• Drop-in replacement compatible with other standard 78xx regulators.

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Technical Specifications

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Applications

• Regulated DC power supplies – stable voltage output for circuits.

• Embedded systems – powering microcontrollers (e.g., 5V for Arduino).

• Consumer electronics – radios, chargers, amplifiers.

• Industrial control systems – stable logic voltage for PLCs or sensors.

• Battery chargers and adapters.

• DIY electronics and prototyping.

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Popular Models in the Series